
27.
<br>
Find the values
of
a
and
b
ir7+345 :7-3/5
Ci
<br>
3+V5
3-5
<br>
OR
<br>
Which
of the following
points lie
on
the negative side ofx-axis?
Which
of
them
lie
on
the posiive side of
<br>
y-axis?
<br>
(-2,
-2), (-4,0), (-3,2), (0,
-4), (5,-7), (1,3),
(-6,-5)(3,
-2)
<br>
Which
of the above points do not lie in
any
of the quadrants?
<br>
29.
Simplify)
<br>
98.
The polynomial () =**-2%°
+3x
-
ax
+3a-7 when divided by (x +1) leaves
the remainder
19.
<br>
Find the value
of
a.
Also
find the remainder, when b(x) is
divided by
x
+2.
<br>
=04:
<br>
Find the values
of
a
and
b
so
that (* +1)
and
(*
-1)
are
factors ofx
+ax-3x+2x
+h.
<br>
3
<br>
OR
<br>
20 Prove
"If twolines intersect each other, then the vertically opposite angles
are
cqual".
<br>
that
AB
=
AC.
<br>
(ü) Factorise:
a +
b–2(ab-
ac
+bc).
<br>
31. In Fig. 10,
the sides
AB
and
AC
of
AABC
are
produced
to
points E and
D respectively. If bisectors BO
<br>
and
CO of
ZCBE
and
ZBCD respectively
meet at
point
O,
then
prove
that
BOC=90°BAG.
<br>
© VK Glebal Publications Pvt. Ltd.
<br>
B
<br>
Model Question Papers
<br>
A
<br>
32.
() Muliply 9x* +25y* +15xy +12x
-20y
+16 by
3x
-5y
-4
using suitable identity.
<br>
Fig.
10.
<br>
D
<br>
C
<br>
211
<br>
33. In Fig, 1I,D
and E
are
points
on
the base
BC of
a
AABCsuch that
4D
=
AE
and
ZBAD
=
ZCAE. Prove
<br>
Flg. 11
<br>
2
<br>
34. AB
and
CD
are
respectively the smallest and longest sides of
a
quadrilateral
ABCD, show that ZA> LC
<br>
and ZB>
ZD.
<br>